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<title> RIS&Oslash;-A1-21 (Velux Measurements) </title></head>

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<H1>RIS&Oslash;-A1-21 AIRFOIL</H1>
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Reynolds number = 1.6 x 10^6 <br><br>

Measured in the Velux wind tunnel (see <A
HREF="./../HTML/biblio.htm#FuglsangDA">Fuglsang, Dahl
and Antoniou</A>) <br><br>

More details on computations and experimental facilities can be found in
the <A HREF="./../HTML/report.htm"><font color="#006699">Wind Turbine
Airfoil Catalogue</font></A>.


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<H1>DATA AVAILABLE:</H1><p><p>

- Airfoil shape (Not available - <A
HREF="mailto:peter.fuglsang@risoe.dk"><font color="#880000">Request
here</font></A>)<p>

<font size=+3> Experiments:<br> </font>
- <A HREF="./cldm.exp"> Lift, Drag and Moment Coefficients </A><p>

- <A HREF="./cp_05.12.exp"> Pressure Distribution - Angle of Attack = 05.12 deg. </A><br>
- <A HREF="./cp_08.29.exp"> Pressure Distribution - Angle of Attack = 08.29 deg. </A><br>
- <A HREF="./cp_10.22.exp"> Pressure Distribution - Angle of Attack = 10.22 deg. </A><br>
- <A HREF="./cp_12.31.exp"> Pressure Distribution - Angle of Attack = 12.31 deg. </A><br>
- <A HREF="./cp_15.11.exp"> Pressure Distribution - Angle of Attack = 15.11 deg. </A><br>
- <A HREF="./cp_17.88.exp"> Pressure Distribution - Angle of Attack = 17.88 deg. </A><p>

<font size=+3> XFOIL Computations:<br> </font>
- <A HREF="./cldm.xf"> Lift, Drag and Moment Coefficients </A><p>
- <A HREF="./cfp_05.12.xf"> Skin Friction and Pressure Distributions - Angle of Attack = 05.12 deg. </A><br>
- <A HREF="./cfp_08.29.xf"> Skin Friction and Pressure Distributions - Angle of Attack = 08.29 deg. </A><br>
- <A HREF="./cfp_10.22.xf"> Skin Friction and Pressure Distributions - Angle of Attack = 10.22 deg. </A><br>
- <A HREF="./cfp_12.31.xf"> Skin Friction and Pressure Distributions - Angle of Attack = 12.31 deg. </A><br>
- <A HREF="./cfp_15.11.xf"> Skin Friction and Pressure Distributions - Angle of Attack = 15.11 deg. </A><br>
- <A HREF="./cfp_17.88.xf"> Skin Friction and Pressure Distributions - Angle of Attack = 17.88 deg. </A><p>

<font size=+3> EllipSys2D Computations: </font><p>
<font size=+2><em>* Fully turbulent:</em><br> </font>
- <A HREF="./FULLYTURB/cldm.ellipsys"> Lift, Drag and Moment Coefficients </A><p>
- <A HREF="./FULLYTURB/cp_05.12.ellipsys"> Pressure Distribution - Angle of Attack = 05.12 deg. </A><br>
- <A HREF="./FULLYTURB/cp_08.29.ellipsys"> Pressure Distribution - Angle of Attack = 08.29 deg. </A><br>
- <A HREF="./FULLYTURB/cp_10.22.ellipsys"> Pressure Distribution - Angle of Attack = 10.22 deg. </A><br>
- <A HREF="./FULLYTURB/cp_12.31.ellipsys"> Pressure Distribution - Angle of Attack = 12.31 deg. </A><br>
- <A HREF="./FULLYTURB/cp_15.11.ellipsys"> Pressure Distribution - Angle of Attack = 15.11 deg. </A><br>
- <A HREF="./FULLYTURB/cp_17.88.ellipsys"> Pressure Distribution - Angle of Attack = 17.88 deg. </A><p>

- <A HREF="./FULLYTURB/cf_05.12.ellipsys"> Skin Friction Distribution - Angle of Attack = 05.12 deg. </A> <br>
- <A HREF="./FULLYTURB/cf_08.29.ellipsys"> Skin Friction Distribution - Angle of Attack = 08.29 deg. </A> <br>
- <A HREF="./FULLYTURB/cf_10.22.ellipsys"> Skin Friction Distribution - Angle of Attack = 10.22 deg. </A> <br>
- <A HREF="./FULLYTURB/cf_12.31.ellipsys"> Skin Friction Distribution - Angle of Attack = 12.31 deg. </A> <br>
- <A HREF="./FULLYTURB/cf_15.11.ellipsys"> Skin Friction Distribution - Angle of Attack = 15.11 deg. </A> <br>
- <A HREF="./FULLYTURB/cf_17.88.ellipsys"> Skin Friction Distribution - Angle of Attack = 17.88 deg. </A> <p>

<font size=+2><em>* With transition model:</em><br> </font>
- <A HREF="./TRANSITION/cldm.ellipsys"> Lift, Drag and Moment Coefficients </A><p>
- <A HREF="./TRANSITION/cp_05.12.ellipsys"> Pressure Distribution - Angle of Attack = 05.12 deg. </A><br>
- <A HREF="./TRANSITION/cp_08.29.ellipsys"> Pressure Distribution - Angle of Attack = 08.29 deg. </A><br>
- <A HREF="./TRANSITION/cp_10.22.ellipsys"> Pressure Distribution - Angle of Attack = 10.22 deg. </A><br>
- <A HREF="./TRANSITION/cp_12.31.ellipsys"> Pressure Distribution - Angle of Attack = 12.31 deg. </A><br>
- <A HREF="./TRANSITION/cp_15.11.ellipsys"> Pressure Distribution - Angle of Attack = 15.11 deg. </A><br>
- <A HREF="./TRANSITION/cp_17.88.ellipsys"> Pressure Distribution - Angle of Attack = 17.88 deg. </A><p>

- <A HREF="./TRANSITION/cf_05.12.ellipsys"> Skin Friction Distribution - Angle of Attack = 05.12 deg. </A> <br>
- <A HREF="./TRANSITION/cf_08.29.ellipsys"> Skin Friction Distribution - Angle of Attack = 08.29 deg. </A> <br>
- <A HREF="./TRANSITION/cf_10.22.ellipsys"> Skin Friction Distribution - Angle of Attack = 10.22 deg. </A> <br>
- <A HREF="./TRANSITION/cf_12.31.ellipsys"> Skin Friction Distribution - Angle of Attack = 12.31 deg. </A> <br>
- <A HREF="./TRANSITION/cf_15.11.ellipsys"> Skin Friction Distribution - Angle of Attack = 15.11 deg. </A> <br>
- <A HREF="./TRANSITION/cf_17.88.ellipsys"> Skin Friction Distribution - Angle of Attack = 17.88 deg. </A>


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<H1>FIGURES AVAILABLE: (PostScript files)</H1><p><p>

- Airfoil shape (Not available)<p>

- <A HREF="./PS/cl.ps"> Lift Coefficient </A><br>
- <A HREF="./PS/cd.ps"> Drag Coefficient </A><br>
- <A HREF="./PS/cm.ps"> Moment Coefficient </A><p>

- <A HREF="./PS/cp_a05.12.ps"> Pressure Distribution - Angle of Attack = 05.12 deg. </A><br>
- <A HREF="./PS/cp_a08.29.ps"> Pressure Distribution - Angle of Attack = 08.29 deg. </A><br>
- <A HREF="./PS/cp_a10.22.ps"> Pressure Distribution - Angle of Attack = 10.22 deg. </A><br>
- <A HREF="./PS/cp_a12.31.ps"> Pressure Distribution - Angle of Attack = 12.31 deg. </A><br>
- <A HREF="./PS/cp_a15.11.ps"> Pressure Distribution - Angle of Attack = 15.11 deg. </A><br>
- <A HREF="./PS/cp_a17.88.ps"> Pressure Distribution - Angle of Attack = 17.88 deg. </A><p>

- <A HREF="./PS/cf_a05.12.ps"> Skin Friction Distribution - Angle of Attack = 05.12 deg. </A><br>
- <A HREF="./PS/cf_a08.29.ps"> Skin Friction Distribution - Angle of Attack = 08.29 deg. </A><br>
- <A HREF="./PS/cf_a10.22.ps"> Skin Friction Distribution - Angle of Attack = 10.22 deg. </A><br>
- <A HREF="./PS/cf_a12.31.ps"> Skin Friction Distribution - Angle of Attack = 12.31 deg. </A><br>
- <A HREF="./PS/cf_a15.11.ps"> Skin Friction Distribution - Angle of Attack = 15.11 deg. </A><br>
- <A HREF="./PS/cf_a17.88.ps"> Skin Friction Distribution - Angle of Attack = 17.88 deg. </A><p>



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